Home / 170,132.73-255,186.81-81,362.40

Finding the Fourth Proportional to 170,132.73, 255,186.81 and 81,362.40

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Solution

The fourth proportional to 170,132.73, 255,186.81 and 81,362.40 is: 122,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,132.73 : 255,186.81 = 81,362.40 : x
  2. Step 2: Convert to fraction form
    170,132.73/255,186.81 = 81,362.40/x
  3. Step 3: Cross multiply
    170,132.73x = 255,186.81 × 81,362.40
  4. Step 4: Simplify right side
    170,132.73x = 20,762,611,309.94
  5. Step 5: Solve for x
    x = 20,762,611,309.94/170,132.73
  6. Step 6: Final answer
    x = 122,037.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.